Feeding and guiding mechanism.



JfH. BROWN. FEEDING AND GUI-DING MECHANISM.

APPLICATION FILED APR. l0. l9l3.

1,217,856. I Patented Feb. 27, 1917.

2 SHEETS-SHEET I.

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J. H. BROWN. FEEDING AND GLHDH'VG MECHANISM.

APPLlCATlON FILED APR. 10, I913- Patente d Feb. 27, 1917.

2 SHEETS-SHEET 2.

UNITED s'rA Es PATENT OFFICE.

JOHN HENRY BROWN, 0E LEIoEs'rE-R, ENGLAND, assienon 'ro'unITEnsHoE MACHIN- ERY COMPANY, OF P TEE'son, NEW JERSEY, A CORPORATION OF NEW JERSEY.

FEEDING AND GUIDING MECHANISM.

Specification of Letters Patent. Patented Feb; 27, 1917.

Application filed April 10, 1913. Serial No. 760,159

To all whom it may concern:

Be it known that 1, JOHN H. BROWN, a subject of the King of England, residing at Leicester, Leicestershire, England, have invented certain Improvements in Feeding and Guiding Mechanisms, of which the following description, in connection with the accompanying drawings, is a specification, like reference characters on the drawings indicating like parts in the several figures.

This invention relates to machines which are used for securing awelt, rand, or other strip of material to workwhich is fed past the point of operation of the machine, and more particularly to machines for securing welts or rands to boots or shoes, and is herein shown as embodied in a machine of the type in which a sole and a'rand are intermittently' fed past anedge gage to aIfastening inserting mechanism which, between the successive feeding operations, inserts metal lic' fastenings through the rand into the sole to secure the rand to the sole. p

In a well-known machine of this type,

" which is disclosed in substantially its comber 27, 1898, there is provided a feeding device forthe sole comprising a rotatable table which also acts as a support for the sole during the operation of the machine; The machine also has an edge gage to locate'the rand with relation to the edge of the sole and a toothed feed roll to feed the rand. In order to locate the rand more correctly with relation to the edge of the'sole, the feed roll in this machine as heretofore constructed was driven so that its feeding speed was somewhat faster'than the feeding speed 'of the table and, therefore, of the sole, thus giving thefeed roll a tendency to crowd the rand forward" in relation to the sole and so tend, as it were, to crimpthe'rand' and cause A it totake up a'position corresponding'to the cu'rvature'of the edge ofthesole.

When dealing with a heavy or stiff rand which is difficult to bend,'it is foundthat the rand guide which lies on one side of the feed duced radius such as the curve at the end of the sole are operated on it is fouhd'thatthe rand, which is held on one side of the tack driving position by the rand guide and on the opposite side of that position by the tack or other fastening last driven, will not curve to the same degree as the edge of the sole.

Hence, when a tack is driven, the rand is secured inside the position which it is'required to occupyand successive operations will cause the rand to be securedffarther and farther away from the edge of tliesole.

randsthe edge of therand shall coincide with the edge of the sole not only at the places where it s: general curvature is'sniall butalso in places where the curvature is greateri To this" end means is provided which tends to force the rand constantly toward the edge gage assuccessive" portionsof the work are presented to theinsert'ing mechanism. In the illustrated embodiment of the "invention this result" isjobt'aine d by awipi'ng movement of the feed-roll upon the rand 'diiring the whole ofthefeeding'movement so that at every, point of therandthere is obtained fronnthiswiping' action during the feeda pressure upon the rand toward the edge gage that guides'the sole or other part'of theshoe to which tlie'raiid is'to be attached. Thus a result is prodlihed' that ismore' even and more accurate than is obtained when merely the difference between the feeding sp'eedof the rand, and the feeding speed of the sole is'relied upon.

In the illustrated construction the wiping action is obtained by providing upon the feedingroll ribs elitending angularly across the roll and so arranged? that as'the roll turns the ribs tendto force therand toward the edgeigage. In a convenient construc-' tion, such as shown in the drawings, a seri'es. of ribsarearranged spirally across the roll, but it is'obviousthat" a single rib might be arranged in a spiral or are series of spirals along the roll in the manner of a screw thread. Conveniently alsothe feedrollis tapered to assist the action' of the ribs since the material will naturally" tend to pass fromthat portion of the tapered roll which is revolving at the highest speed tofthat por ti'on' whichis revolving at the'lowest speed".

To assist the action of the feed roll in maintaining the rand in engagement with the edge gage, another feature of the invention comprises the provision, of a ran l guide and a plate overlying the guide to hold the rand upon the work-engaging face thereof, said face being inclined relatively to the work-engaging face of the plate. Tins construction results in twisting the rand as it is leaving the rand guide, and tends to cause its movement toward the edge gage as the Work follows a curved path past said 'age.

Other features and objects of the invention will become apparent when the following description and claims are considered in connection with the accompanying drawings, in which,-

Figure 1 is a side elevation of the principal parts of a well-known welt or rand attaching machine;

Fig. 2 is a perspective view of the ribbed roll; and

Fig. 3 is a perspective View showing, on an enlarged scale, the rand feeding and guiding instrumentalities illustrated in Fig. 1.

It will be understood that the particular means used to attach the welt or rand to the work is immaterial so far as the other features of the invention are concerned and that any, well-known type of fastening inserting machine might be combined with the principal elements of this invention.

For the purposes of the following descrip tion the invention is hown as embodied in a commercial machine known to the trade as the power welt tacking machine, this machine being shown, as above pointed out, in

.the patent to Casgrain, No. 611,405, above identified, and the fastening inserting machine to which the welt guiding and work feeding parts have been attached being shown in substantially its present commercial form in the patent to L. Goddu, No. 490,625, dated January 24,1893.

The fastenings formed and inserted by this machine are known as taper nails or tacks, and are cut successively from the end of a strip which is oscillated between the successive fastening forming and inserting operations to bring the oblique end of the strip into proper relation to the cutting mechanism. The nails or tacks thus formed are driven through a nozzle 2 by a driver connected to a driver bar 4 operated from the main driving shaft 6 in the manner described in the Letters Patent to L. Goddu above identified. The work to be operated. upon, which in the drawings is shown as a sole S to Which a welt W is to be attached, is supported upon a table 8 carried upon the upper end of a vertical shaft 10 to which is also attached a gear wheel 12 meshing with a long gear wheel extending along the path of vertical movement of the shaft 10 and itself driven from a bevel gear 1 lopera ed from the strip oscillating mechanism of the machine in the manner more fully described in said patent to L. Goddu, above identified.

The table 8 is upheld in operating position by means of a spring 16 and it is provided with connections to a treadle, not shown, whereby it may be depressed for the insertion or withdrawal of the work. As the table 5 moves up and down the shaft 10 is adapted to slide vertically in a bracket 18 attached to the machine frame and by which the various parts of the work feeding mechanism are supported. At one side of the table 8 there is fixed to the bracket 18 an edge gage 20 against which it is intended that the sole S should be pressed, the sole being fed by the rotation of the table, which, to insure more regular and accurate feeding, is provided on its top surface with a series of teeth, as more fully shown in the patent to Casgrain above referred to.

Mounted upon the shaft 22 which carries the bevel. gear 1a is a feed roll 24- adapted to press the welt or rand W down upon the sole S and feed. it along as the sole is fed, the shaft 22 being driven at such a speed that the feeding speed of the roll 24L is greater than the feeding speed of the table 8. Consequently the rand tends to be fed faster than the sole whereby slipping occurs and the rand tends to move outward toward the edge gage. The feed roll 24 is tapered and is located with its largest circumference toward the inside of the sole and its smallest circumference toward the outside. The periphery of the roll is provided with a series of ribs 26 which are arranged spirally across the said periphery and in such direc tions with respect to the direction of rotation of the roll that as the roll rotates they tend to force the rand outward toward the edge gage 20, their action being like that of a number of screw threads of very steep pitch screwing the rand, as it moves forward, toward the edge gage.

In order to assist the action of the feed roll and to insure the pressure of the welt or rand W against the edge gage 20, there is provided also, in the illustrated construe tion, means operating in the inclined guideway 28 to press the welt or rand, as it is guided to the attaching mechanism, inward toward the edge gage 20. To this end the guideway is provided at its inner side with a ledge, not shown, toward which the rand yieldingly pressed by a finger 3O pivoted at its upper end to an extension of the guideway 28. The other end of the finger, which is somewhat curved, is kept in engagement with the thin edge of the rand by a wire spring 32 which thus operates to press the welt or rand toward the edge gage 20. The lower portion of the guideway has secured to it a plate 84 that overlies the welt or, rand and extends across it immediately in front of the finger 30, thus keeping the rand down upon the surface of the guideway 28. The

work-engaging face 33 of the rand guide is inclined relatively I to the work-engaging face-0f the overlying plate 34, as shown, in such a direction as to twist the rand so that its inner edge will be higher than its outer edge and thus give it a tendency outward toward the edge gage.

Having described my invention, what I claim as new and desire to secure by Letters Patent of the United States is l i 1. A machine of the class described comprising an edge gage, work feeding means rand as it is fed a Wiping action in a direction to screw the rand at all points successively toward the edge gage.

2. In a machine of the class described, the combination with an edge gage, a work support, and a rand guide adapted to guide a rand to be attached to Work upon said work support, of a plate overlying said guide to hold a rand upon the work-engaging face of the rand guide, said face being inclined relatively to the Work-engaging face of said plate for so twisting said rand as it is leav-- ing the rand guide that it tends to move t0- ward said edge gage as the work follows a curved path past said edge gage. V

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JOHN HENRY BROWN.

WVitnesses:

FREDERICK WILLIAM WORTH, KATHERINE PEXTON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents Washington, D. G. 1 

